作呕 发表于 2025-3-23 10:24:09

Principal Eigenvalues and Perturbation,In a classical article, Hess and Kato study the problem . where . is a strongly elliptic operator on a bounded open set Ω of .. with Dirichlet boundary conditions and . is a continuous bounded function on Ω. They show that there exists a unique λ > 0 such that the problem (0.1) has a solution.

隼鹰 发表于 2025-3-23 14:15:06

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grieve 发表于 2025-3-23 19:27:57

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四目在模仿 发表于 2025-3-24 01:59:10

Disjointness Preserving Operators on Banach Lattices,In this survey on disjointness preserving (bandpreserving, central) operators we will be mainly concerned with automatic order and norm boundedness properties of these classes of operators.

intellect 发表于 2025-3-24 04:23:00

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钢盔 发表于 2025-3-24 09:00:05

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bonnet 发表于 2025-3-24 14:46:01

C. B. Huijsmans,M. A. Kaashoek,W. A. J. Luxemburg,B. de Pagteroll damit auch äußerlich angedeutet sein, daß ich der primären Darm- tuberkulose nicht nur hinsichtlich ihrer Bedeutung für das Tuberkuloseproblem überhaupt, sondern auch, was ihre bisher kaum erforschte pathologische Anatomie angeht, eine Sonderstellung gegenüber den übrigen Formen der Darm- tuberk

预示 发表于 2025-3-24 17:45:11

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deriver 发表于 2025-3-24 20:49:27

Biographical Notes,irthday in June of the same year. In March 1993, Professor Zaanen also celebrated the 55th anniversary of receiving his Doctor’s Degree in Philosophy at the University of Leiden, marking the beginning of his remarkable mathematical career.

HAWK 发表于 2025-3-25 02:36:49

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查看完整版本: Titlebook: Operator Theory in Function Spaces and Banach Lattices; Essays dedicated to C. B. Huijsmans,M. A. Kaashoek,B. Pagter Book 1995 Birkhäuser